15143022020 has 48 divisors (see below), whose sum is σ = 36352592640. Its totient is φ = 5190559104.

The previous prime is 15143021989. The next prime is 15143022023. The reversal of 15143022020 is 2022034151.

It is a super-2 number, since 2×15143022020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 15143021983 and 15143022001.

It is not an unprimeable number, because it can be changed into a prime (15143022023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643502 + ... + 666618.

It is an arithmetic number, because the mean of its divisors is an integer number (757345680).

Almost surely, 2^15143022020 is an apocalyptic number.

15143022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15143022020 is an abundant number, since it is smaller than the sum of its proper divisors (21209570620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15143022020 is a wasteful number, since it uses less digits than its factorization.

15143022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27812 (or 27810 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 15143022020 its reverse (2022034151), we get a palindrome (17165056171).

The spelling of 15143022020 in words is "fifteen billion, one hundred forty-three million, twenty-two thousand, twenty".